| September 2006 | Minister of Education, Culture, Sports, Science and Technology |
| October 2004 | Chairman, Working Group of the Research Commission on the Tax System (LDP) |
| December 2000 | Chairman, National Public Safety Commission
Minister of State for National Emergency Legislation
Minister of State for Disaster Management |
| July 2000 | Chairman, Party Organization Headquarters (LDP) |
| November 1999 | Chairman, Research Commission on the Pension System (LDP) |
| October 1999 | Chairman, Public Relations Headquarters (LDP) |
| September 1997 | Minister of Labor |
| November 1996 | Deputy Secretary-General (LDP) |
| September 1994 | Chairman, Standing Committee on Education
(House of Representatives) |
| December 1990 | Parliamentary Vice-Minister of Health |
| December 1983 | First election to the House of Representatives |
| August 1982 | Secretary to the Minister of Finance |
| June 1980 | Director, Treasury Division, Ministry of Finance |
| April 1965 | Secretary, Japanese Embassy to the United Kingdom |
| April 1960 | Enters the Ministry of Finance |